[TIP] How to stop coverage from visiting /usr/local when running pytes?
holger krekel
holger at merlinux.eu
Sun May 26 04:28:04 PDT 2013
On Fri, May 24, 2013 at 15:58 -0700, Steve Wang wrote:
> (3) However, if i run the same test under the control of 'coverage', then it takes a lot more time than I expect
>
> ~/lab/proj$ which coverage
> /usr/local/bin/coverage
>
> ~/lab/proj$ coverage erase
>
> ~/lab/proj$ coverage run /usr/local/bin/py.test test_sample.py
you could also do "pip install pytest-cov" and then:
$ py.test --cov=test_sample.py
See also other pytest-cov options with "py.test --help"
cheers,
holger
> ============================= test session starts ==============================
> platform linux2 -- Python 2.7.3 -- pytest-2.3.5
> plugins: cov
> collected 1 items
>
> test_sample.py F
>
> =================================== FAILURES ===================================
> _________________________________ test_answer __________________________________
>
> def test_answer():
> > assert func(3) == 5
> E assert 4 == 5
> E + where 4 = func(3)
>
> test_sample.py:5: AssertionError
> =========================== 1 failed in 2.96 seconds ===========================
>
>
> (4) And I noticed that a huge .coverage file was created
>
> ~/lab/proj$ la -l .coverage
> -rw-r--r-- 1 pi pi 16083 May 24 18:29 .coverage
>
> (5) And indeed, there's all sorts of data collecte from /usr/local. How can I stop coverage from going there?
>
> ~/lab/proj$ coverage report
> Name Stmts Miss Cover
> ------------------------------------------------------------------------------------------------------------------
> /usr/local/bin/py 4 0 100%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/__init__ 5 0 100%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_apipkg 131 34 74%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_builtin 188 140 26%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_code/__init__ 0 0 100%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_code/code 518 172 67%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_code/source 294 155 47%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_error 50 11 78%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_io/__init__ 0 0 100%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_io/capture 264 114 57%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_io/saferepr 35 16 54%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_io/terminalwriter 215 149 31%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_path/__init__ 0 0 100%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_path/common 232 113 51%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_path/local 558 356 36%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_std 11 5 55%
> /usr/local/lib/python2.7/dist-packages/py-1.4.14-py2.7.egg/py/_xmlgen 168 114 32%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/__init__ 1 0 100%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/__init__ 78 15 81%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/newinterpret 244 171 30%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/oldinterpret 402 327 19%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/reinterpret 36 12 67%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/rewrite 436 302 31%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/assertion/util 172 114 34%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/capture 163 52 68%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/config 355 120 66%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/core 387 106 73%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/doctest 75 54 28%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/genscript 51 38 25%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/helpconfig 138 79 43%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/hookspec 57 0 100%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/junitxml 142 92 35%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/main 463 131 72%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/mark 131 72 45%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/monkeypatch 71 40 44%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/nose 37 12 68%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/pastebin 56 38 32%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/pdb 73 44 40%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/python 1163 631 46%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/recwarn 65 52 20%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/resultlog 80 62 23%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/runner 289 101 65%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/skipping 197 134 32%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/terminal 382 171 55%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/tmpdir 42 24 43%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/_pytest/unittest 147 115 22%
> /usr/local/lib/python2.7/dist-packages/pytest-2.3.5-py2.7.egg/pytest 8 2 75%
> /usr/local/lib/python2.7/dist-packages/pytest_cov-1.6-py2.7.egg/pytest_cov 44 27 39%
> /usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/pkg_resources 1247 996 20%
> test_sample 4 0 100%
> ------------------------------------------------------------------------------------------------------------------
> TOTAL 9909 5513 44%
>
>
> (5) Finally, I did try the -omit switch, however, it still took a long time.
> It feels like that coverage went to /usr/local anyway, collected the data and then threw it away.
> I don't have hard evidence that it did that. I tried to use pdb to step into coverage
> but failed to see exactly what it was doing.
>
> ~/lab/proj$ coverage run --omit=/usr/local/* /usr/local/bin/py.test test_sample.py
> ============================= test session starts ==============================
> platform linux2 -- Python 2.7.3 -- pytest-2.3.5
> plugins: cov
> collected 1 items
>
> test_sample.py F
>
> =================================== FAILURES ===================================
> _________________________________ test_answer __________________________________
>
> def test_answer():
> > assert func(3) == 5
> E assert 4 == 5
> E + where 4 = func(3)
>
> test_sample.py:5: AssertionError
> =========================== 1 failed in 2.91 seconds ===========================
> ~/lab/proj$
> _______________________________________________
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